Question

find the acceleration if initial velocity is 10 m/s and final velocity 18m/s and the time is 2 seconds​

Answer 1

$\huge\mathfrak{Answer}$

Given :

Intital velocity = 10 m /s

Final velocity = 18 m/s

t = 2 sec

To find :

Accelaration

Solution :

We have to find the accelaration

By Equation of motion, we have

$\tt\:v=u+at$

Now, on putting the given values, we get

$\sf\implies\:18=10+a\times2$

$\sf\implies\:18-10=2a$

$\sf\implies\:8=2a$

$\sf\implies\:a=\dfrac{8}{2}$

$\sf\implies\:a=4ms^{-2}$

Therefore, accelaration is 4m/s².

Answer 2

Given :

• Initial velocity, u = 10 m /s
• Final velocity, v= 18 m/s
• Time , t= 2 sec

To find :

Accelaration

${\purple{\boxed{\large{\bold{Formula's}}}}}$

Kinematic equations for uniformly accelerated motion .

$\bf\:v=u+at$

$\bf\:s=ut+\frac{1}{2}at{}^{2}$

$\bf\:v{}^{2}=u{}^{2}+2as$

and $\bf\:s_{nth}=u+\frac{a}{2}(2n-1)$

Solution :

We have to find the accelaration

By Equation of motion :

$\bf\:\blue{v=u+at}$

Put the given values

$\tt18=10+2\times\:a$

$\tt2a=18-10$

$\tt2a=8$

$\tt\:a=\dfrac{8}{2}$

$\tt\:a=4ms^{-2}$

Therefore,

$\sf\:\green{Accelaration=4ms^{-2}}$